Android Utililty Methods Unzip File

List of utility methods to do Unzip File

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Description

The list of methods to do Unzip File are organized into topic(s).

Method

java.io.InputStreamUpZip(String zipFileString, String fileString)
Up Zip 
android.util.Log.v("XZip", "UpZip(String, String)");
java.util.zip.ZipFile zipFile = new java.util.zip.ZipFile(
        zipFileString);
java.util.zip.ZipEntry zipEntry = zipFile.getEntry(fileString);
return zipFile.getInputStream(zipEntry);
booleanunzipArchive(File archive, File outputDir)
unzip Archive 
boolean result = false;
ZipFile zipfile;
try {
    zipfile = new ZipFile(archive);
    for (Enumeration e = zipfile.entries(); e.hasMoreElements();) {
        ZipEntry entry = (ZipEntry) e.nextElement();
        unzipEntry(zipfile, entry, outputDir);
    result = true;
} catch (IOException e1) {
return result;
MapUnZipFileToMem(String source)
Un Zip File To Mem 
File file = new File(source);
if (file.exists() == false) {
    return null;
try {
    return UnZipFileToMem(new FileInputStream(file));
} catch (Exception e) {
return null;
booleanUnZipFile(String source, String targetPath)
Unzip a source to the targetPath, is similar with the UnZipFile(InputStream is, String targetPath) 
File file = new File(source);
if (file.exists() == false) {
    return false;
try {
    return UnZipFile(new FileInputStream(file), targetPath);
} catch (Exception e) {
return false;
voidunZip(String zipFile, String destinationDirectory)
kudos: http://www.jondev.net/articles/Unzipping_Files_with_Android_(Programmatically) 
try {
    FileInputStream fin = new FileInputStream(zipFile);
    ZipInputStream zin = new ZipInputStream(fin);
    ZipEntry ze = null;
    while ((ze = zin.getNextEntry()) != null) {
        Log.v("Decompress", "Unzipping " + ze.getName());
        String destinationPath = destinationDirectory
                + File.separator + ze.getName();
...
voidunZipFromAssets(Context ctx, String file, String destinationDirectory)
extracts a zip archive from the assets dir. 
String destinationFilename = extractFromAssets(ctx, file,
        destinationDirectory);
try {
    unZip(destinationFilename, destinationDirectory);
} catch (Exception e) {
    throw new Exception(e);